The starting symbol of a PDCCH monitoring occasion in each slot having PDCCH monitoring occasion is given by Monitoring-symbols-PDCCH-within-slot. The length (in symbols) of a PDCCH monitoring occasion is given in the corset associated with the search space. Search space configuration includes the identifier of coreset configuration associated with it. A list of coreset configurations are signaled by the gNB for each configured BWP wherein each coreset configuration is uniquely identified by an identifier. Note that each radio frame is of 10 ms duration. Radio frame is identified by a radio frame number or system frame number. Each radio frame comprises of several slots wherein the number of slots in a radio frame and duration of slots depends on sub carrier spacing. The number of slots in a radio frame and duration of slots depends radio frame for each supported subcarrier spacing (SCS) is pre-defined in NR. Each coreset configuration is associated with a list of Transmission configuration indicator (TCI) states. One downlink (DL) reference signal (RS) identity (ID) (synchronization signal block (SSB) or channel state information reference signal (CSI-RS)) is configured per TCI state. The list of TCI states corresponding to a coreset configuration is signaled by the gNB via radio resource control (RRC) signaling. One of the TCI state in TCI state list is activated and indicated to the UE by the gNB. TCI state indicates the DL TX beam (DL TX beam is quasi-collocated (QCLed) with SSB/CSI-RS of TCI state) used by the gNB for transmission of PDCCH in the PDCCH monitoring occasions of a search space.